Tag: random walk

Mike Gilliland 0
Forecast Value Added Q&A (Part 5)

Q: ­Company always try to forecast 12 or 24m ahead. Whether we should track accuracy of 1m/3m/ 6m or x month forecast, does that depend on lead time?  How to determine out of these 12/24 months, which month should we track accuracy? Correct, forecast performance is usually evaluated against the

Mike Gilliland 0
Forecast Value Added Q&A (Part 4)

Q: ­What is a legitimate goal to expect from your FVA...5%, 10%? Q: ­How do we set Target FVA which Forecasters can drive towards?­ The appropriate goal is to do no worse than a naive model, that is FVA ≥ 0. Sometimes, especially over short periods of time, you may

Mike Gilliland 0
How to make weather forecasting look good

Compare it to predicting the economy. So concludes an ABC News Australia story by finance reporter Sue Lannin, entitled "Economic forecasts no better than a random walk." The story covers a recent apology by the International Monetary Fund over its estimates for troubled European nations, and an admission by the